1810's
Carl Spitzweg was a German romanticist painter, especially of genre subjects. He is considered to be one of the most important artists of the Biedermeier era.
Abraham Lincoln was an American statesman and politician, the 16th President of the United States (March 4, 1861 - April 15, 1865).
The son of a frontiersman and a Kentucky farmer, Lincoln worked hard from an early age and struggled to learn. He was a militiaman in the Indian War, practiced law, and sat in the Illinois legislature for eight years. He was an opponent of slavery and gradually gained a national reputation that earned him victory in the 1860 presidential election.
After becoming the 16th president of the United States, Abraham Lincoln turned the Republican Party into a strong national organization. In addition, he drew most Northern Democrats to the Union side. On January 1, 1863, he issued the Emancipation Proclamation, which declared permanently free those slaves who were in Confederate territory. Lincoln considered secession illegal and was prepared to use force to defend federal law and the Union. Four more slave states joined the Confederacy, but four remained in the Union, and the Civil War of 1861-1865 began.
Lincoln personally directed the military action that led to victory over the Confederacy. Abraham Lincoln was reelected in 1864, and on April 14, 1865, he was fatally shot at Ford's Theatre in Washington, D.C. by actor John Wilkes Booth.
Abraham Lincoln is a national hero of the American people, he is considered one of the best and most famous presidents of the United States until today.
Isaac Newton was an English mathematician, physicist, astronomer, alchemist, theologian, and author (described in his time as a "natural philosopher"), widely recognised as one of the greatest mathematicians and physicists and among the most influential scientists of all time. He was a key figure in the philosophical revolution known as the Enlightenment. His book Philosophiæ Naturalis Principia Mathematica (Mathematical Principles of Natural Philosophy), first published in 1687, established classical mechanics. Newton also made seminal contributions to optics, and shares credit with German mathematician Gottfried Wilhelm Leibniz for developing infinitesimal calculus.
In the Principia, Newton formulated the laws of motion and universal gravitation that formed the dominant scientific viewpoint until it was superseded by the theory of relativity. Newton used his mathematical description of gravity to derive Kepler's laws of planetary motion, account for tides, the trajectories of comets, the precession of the equinoxes and other phenomena, eradicating doubt about the Solar System's heliocentricity. He demonstrated that the motion of objects on Earth and celestial bodies could be accounted for by the same principles. Newton's inference that the Earth is an oblate spheroid was later confirmed by the geodetic measurements of Maupertuis, La Condamine, and others, convincing most European scientists of the superiority of Newtonian mechanics over earlier systems.
